Apple Motion 3 - Manual (Page 885)

Chapter 10 Using Filters 885
Invert
Inverts all color and brightness in an image. This filter can be used to turn a scanned
negative image into a properly displayed positive.
Parameters in the Inspector
Mix: Sets what percentage of the original image is blended with the filtered image.
Values range from 0 to 100%.
HUD Controls
The HUD contains the mix control.
Levels
This filter provides controls to remap the white and black points of an image, along
with a Gamma control to adjust the midtones, all at once. A histogram provides an
analysis of the image that you can use to help you judge the adjustments you want to
make.
A powerful option within this filter is the ability to make independent adjustments to
the red, green, blue, and alpha channels of an object.
Parameters in the Inspector
Histogram: An analysis of the object. By default, the RGB channels are selected. A pop-
up menu can be used to select red, green, blue, or alpha channels individually for
viewing.
For each channel parameter (RGB, Red, Green, Blue, Alpha, and Gamma):
Black In: Sets the In point for black, below which values are considered black. The
parameter ranges from 0 to 1.
Black Out: Sets the minimum brightness value that appears in the output. Other
values are scaled between Black Out and White Out values.
Original image Image inverted